v.渗透

英文释义

v. i. To enter by penetrating the pores or interstices of a substance; to filter into or through something.

v. t. To penetrate gradually; -- sometimes used reflexively.

词干

infiltrate 潜入，渗透
→ in-，进入，使，filter，渗透，过滤。即渗进去的，引申词义潜入，渗透。